| 随机线列阵的波束形成 |
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| 引用本文： | 单秉彝. 随机线列阵的波束形成[J]. 声学学报, 1992, 17(5): 345-354. DOI: 10.15949/j.cnki.0371-0025.1992.05.005 |
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| 作者姓名： | 单秉彝 |
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| 作者单位： | 杭州应用声学研究所 浙江富阳311400 |
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| 摘 要： | 为解决拖曳线列阵基元位置不定性问题,本文给出模拟阵形时空曲线方程和信号时空采样矩阵,求出随机化处理平均波束图,将理论模拟和试验结果作了比较,得到阵形变化和畸变损失的定量结果.还给出阵形估计的一种模型,并进行动态补偿的试验研究.结果表明,对中等畸变低速拖曳的小型线列阵,动态补偿可以得到4dB的增益改善.
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| 收稿时间： | 1991-02-16 |
Study of beamforming for random line array |
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| SHAN Bingyi. Study of beamforming for random line array[J]. ACTA ACUSTICA, 1992, 17(5): 345-354. DOI: 10.15949/j.cnki.0371-0025.1992.05.005 |
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| Authors: | SHAN Bingyi |
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| Abstract: | In order to solve the uncertainly tof the element place for a towed line array,the sample matrix of the signal and the time-space curve equations of the array shape are given in the paper.Average beampatterns of a randomized processing and quantitative result of the loss caused by the array shape distortion are obtained.A model used for estimating array shape is given,the experimental study of dynamical beamforming has been practised.The results show that 4dB gain improvement can be obtained by dynamic compensation for a small towed line array,when the distortion of array shape is medium and towed speed is show. |
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